--- old/src/share/classes/java/awt/EventQueue.java	2012-08-17 13:46:15.613791500 +0400
+++ new/src/share/classes/java/awt/EventQueue.java	2012-08-17 13:46:14.417723100 +0400
@@ -1039,6 +1039,7 @@
          * to its queue, so the EventQueue.dispatchThread reference must
          * be valid at that point.
          */
+        SunToolkit.flushPendingEvents();
         pushPopLock.lock();
         try {
             if (edt == dispatchThread) {
@@ -1049,7 +1050,7 @@
                  * Fix for 4648733. Check both the associated java event
                  * queue and the PostEventQueue.
                  */
-                if (!forceDetach && (peekEvent() != null) || !SunToolkit.isPostEventQueueEmpty()) {
+                if (!forceDetach && (peekEvent() != null)) {
                     return false;
                 }
                 dispatchThread = null;